>>11570597There's nothing wrong with having one single point of focus in collecting. Look at LEGO and Hot Wheels collectors. They're largely the same way. In fact a lot of collectors tend to focus on one line instead of trying to have multiple lines to collect.
It's a pain in the ass trying to collect Star wars AND Transformers AND GI Joe AND MOTU AND (fill in blank). You can only get a little from each unless you're really well-off, so building up multiple collections at once is a very slow thing.